Bio Chapter 8

autotroph

organism that can capture energy from sunlight or chemicals & use it to produce its own food from inorganic compounds
heterotroph

organism that obtains energy from the food it consumes
adenosine triphosphate (ATP)

one of the principal chemical compounds that living things use to store & release energy
photosynthesis

process by which plants & some other organisms use light energy to convert water & carbon dioxide into oxygen & high-energy carbohydrates such as sugars & starches
pigment

light-absorbing molecule
chlorophyll

principal pigment of plants & other photosynthetic organisms; captures light energy
thylakoid (disc)

saclike photosynthetic membrane found in chloroplasts
photosystem

light-collecting units of chloroplast
stroma

region outside the thylakoid membranes in chloroplasts
light-dependent reaction

reactions of photosynthesis that use energy from light to produce ATP & NADPH
Calvin cycle

reactions of photosynthesis in which energy from ATP & NADPH is used to build high-energy compounds such as sugars

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Bio Chapter 8

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Bio Vocab. Unit 3

Updated

2010-03-13T19:55:05Z

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